when i first flashed it, i did a factory reset, flashed your rom, then another factory reset, for good measure.Don't know i do not have any lag here not like that. I have some of the same xposed mods installed myself. When you flash my rom was it a dirty flash from brazil mm?
Try this go to app manager and list all apps find tje settings app and clear data and cache on it reboot into twrp and clear cache. If that did not work. You will need to make a twrp backup and flash and test a clean rom. With the backup ypu van always restore.
i am downloading the fastboot version of stock mm since that is the cleanest way i know to flash a rom.
i will check for the lag there, then flash twrp and your rom again.
fingers crossed